Registration Dossier
Registration Dossier
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EC number: 309-870-9 | CAS number: 101316-66-9 A complex combination of hydrocarbons obtained during the sorptions of toluene from a hydrocarbon fraction from cracked gasoline treated with hydrogen in the presence of a catalyst. It consists predominantly of hydrocarbons having carbon numbers predominantly in the range of C6 through C8 and boiling in the range of approximately 80°C to 135°C (176°F to 275°F).
Bioaccumulation: aquatic / sediment
Administrative data
Link to relevant study record(s)
Description of key information
BCF have been calculated for various representative components of these streams. The calculated values range from 99 to 5790.
Key value for chemical safety assessment
Additional information
A measured BCF is not available for any streams in this category. As the log Kow of some category members is >3 the bioaccumulation endpoint cannot be waived. However, ECHA's Guidance on Information Requirements and Chemical Safety Assessment R7c Endpoint Specific Guidance (2008) indicates that before commissioning a new vertebrate test alternative sources of data on the bioaccumulation potential of a chemical should be used.
Nonpolar substances have been shown to have a linear relationship between log Kow and BCF in the log Kow range 1 to 6. Several QSAR have been developed that calculate the BCF of non-polar, hydrophobic compounds on the basis of their log Kow (e.g. Veith et al, 1979 and USEPA, 2008). The method of Veith et al (1979) was used to calculate the BCF for representative substances of the streams since most of the substances fall within the applicability domain of the model. For the substance with a log Kow >6, a parabolic method has been used for calculation. The calculated BCF of representative components of the streams range from 99 to 5790.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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